PHILADELPHIA -- Last season, when the Eagles welcomed the New England Patriots to Philadelphia for joint practices during training camp, cornerback Cary Williams was kicked off the field one day for starting a fight.

Speaking after practice Friday, with the team set to head to Foxborough, Mass., in two weeks to work against the Patriots, Williams got the trash talk started early.

Williams was referring to the Patriots being caught videotaping the Jets' defensive signals in 2007. They were fined $500,000 and forfeited a draft pick.

Why Williams, who never played for the Jets, would have issues with the Patriots likely goes back to his days with the Baltimore Ravens. The Patriots knocked the Ravens out of the playoffs with a 23-20 win in the AFC Championship Game in 2012.

Now with the Eagles, Williams doesn't sound eager to allow the Patriots to own another tape of the Eagles' defense practicing against the Pats' offense.

"If you're a smart coach, you understand that there's going to be certain signals that are going to be used out there on that practice field," Williams said. "You don't want to give any team -- I don't care if it's the Patriots or the Bengals -- you don't want to give them an opportunity to look at your stuff.

"That's just me. I don't want to show none of our cards. To me, it's not benefiting us because they have already proven who they are. That's the history."

Williams eventually tried to soften the blow of his comments, but still couldn't help taking a swipe at the Patriots.

"I'm trying to go into details about it or disrespect that organization. You still have to go out and play the game," Williams said. "I give them all the credit in the world. But one fact still remains -- they haven't won a Super Bowl since they got caught."